The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Long Beach, California
Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
http://registry.faa.gov/N756FZ
Location: Torrance, CA
Accident Number: WPR16LA163
Date & Time: 08/08/2016, 1508 PDT
Registration: N756FZ
Aircraft: CESSNA TR182
Aircraft Damage: Substantial
Defining Event: Landing gear collapse
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional
Analysis
During an instructional flight, the flight instructor was demonstrating a normal landing to the pilot under instruction. As the airplane approached the runway, the instructor selected the landing gear down and configured the airplane for the landing. The landing checks were called out, and a landing gear green indictor light was verified, indicating that the landing gear should have been down and locked. The landing flare and initial touchdown were normal. However, shortly after the airplane touched down, it listed right as the right main landing gear (MLG) collapsed. The airplane then entered a 180o skidding turn before coming to a stop. Two witnesses reported seeing the airplane on final approach with its right MLG not fully extended.
During a postaccident examination, the airplane was placed on jacks to facilitate a gear-swing test. The MLG were cycled multiple times with no evidence of any preimpact mechanical failures or malfunctions that would have precluded normal operation. Each time the MLG were extended, the landing gear indicator lights inside the cockpit illuminated. The reason for the right MLG's failure to fully extend when the MLG were selected down could not be determined.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The failure of the right main landing gear to fully extend for reasons that could not be determined because postaccident examination and testing did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation.
Findings
Aircraft
Main landing gear - Malfunction (Cause)
Not determined
Not determined - Unknown/Not determined (Cause)
Factual Information
On August 8, 2016, at 1508 Pacific daylight time, a Cessna TR182, N756FZ, experienced a right main landing gear collapse after landing at Zamperini Field Airport (TOA), Torrance, California. The airplane was registered to M and S 182 LLC and operated by Pacific Skies Aviation under the provisions of 14 Code of Federal Regulations Part 91. The certified flight instructor and the commercial pilot undergoing instruction (PUI), were not injured. The airplane sustained substantial damage to the right horizontal stabilizer. The local instructional flight departed TOA about 1338. Visual meteorological conditions prevailed, and no flight plan had been filed.
The flight instructor reported that he was demonstrating a normal landing to the PUI. As the flight approached the runway, he extended the landing gear and configured the airplane for a normal landing. The landing checks were called out and a green light was verified indicating that the landing gear was extended. The flare and initial touchdown were normal. Shortly after the airplane touched down, the airplane listed to the right. The airplane entered into a 180o skidding turn before coming to a stop.
Two witnesses located at the airport reported seeing the airplane on final approach with its right main landing gear not fully extended.
A Federal Aviation Administration inspector from the Long Beach Flight Standards District Office reported that when he arrived on site, he observed the airplane on the runway with the nose and left main landing gear down and locked. The right main landing gear was fully retracted. During the recovery process, the airplane was lifted and the right main landing gear freely fell into trail. A mechanic then manually placed the right side gear in the down and locked position. The airplane was lowered onto the landing gear and subsequently towed from the runway to a secured location.
During a postaccident examination, the airplane was placed on jacks to facilitate a gear swing test. The landing gear was cycled multiple times with no anomalies noted. The landing gear indicator lights inside the cockpit illuminated during the landing gear extension.
Flight Instructor Information
Certificate: Airline Transport; Commercial
Age: 41, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 12/30/2015
Occupational Pilot: Yes
Last Flight Review or Equivalent: 07/12/2016
Flight Time: (Estimated) 9000 hours (Total, all aircraft), 300 hours (Total, this make and model), 8700 hours (Pilot In Command, all aircraft), 150 hours (Last 90 days, all aircraft), 50 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)
Pilot Information
Certificate: Commercial
Age: 20, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 07/26/2016
Occupational Pilot: No
Last Flight Review or Equivalent: 04/15/2016
Flight Time: (Estimated) 315.7 hours (Total, all aircraft), 127.4 hours (Pilot In Command, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: CESSNA
Registration: N756FZ
Model/Series: TR182 NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 1979
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: R18201069
Landing Gear Type: Retractable - Tricycle
Seats: 4
Date/Type of Last Inspection: 07/15/2016, 100 Hour
Certified Max Gross Wt.: 3100 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 3730.8 Hours as of last inspection
Engine Manufacturer: Lycoming
ELT: Installed, not activated
Engine Model/Series: O-540-L3C5D
Registered Owner: M and S 182 LLC.
Rated Power: 235 hp
Operator: Pacific Skies Aviation LLC.
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KTOA, 90 ft msl
Observation Time: 2208 UTC
Distance from Accident Site: 0 Nautical Miles
Direction from Accident Site: 279°
Lowest Cloud Condition: Clear
Temperature/Dew Point: 28°C / 18°C
Lowest Ceiling: None
Visibility: 10 Miles
Wind Speed/Gusts, Direction: 9 knots, 270°
Visibility (RVR):
Altimeter Setting: 29.81 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Torrance, CA (TOA)
Type of Flight Plan Filed: None
Destination: Torrance, CA (TOA)
Type of Clearance: VFR
Departure Time: 1338 PDT
Type of Airspace: Class D
Airport Information
Airport: ZAMPERINI FIELD (TOA)
Runway Surface Type: Asphalt; Concrete
Airport Elevation: 103 ft
Runway Surface Condition: Dry
Runway Used: 11L
IFR Approach: None
Runway Length/Width: 5001 ft / 150 ft
VFR Approach/Landing: Full Stop; Traffic Pattern
Wreckage and Impact Information
Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 33.801111, -118.335000 (est)
NTSB Identification: WPR16LA163
14 CFR Part 91: General Aviation
Accident occurred Monday, August 08, 2016 in Torrance, CA
Aircraft: CESSNA TR182, registration: N756FZ
Injuries: 2 Uninjured.
This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
On August 8, 2016, at 1508 Pacific daylight time, a Cessna TR182, N756FZ, sustained substantial damage subsequent to a landing gear collapse at Zamperini Field Airport (TOA), Torrance, California. The airplane was operated by Pacific Skies Aviation under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The certified flight instructor (CFI) and commercial pilot undergoing instruction (PUI), were not injured. The local instructional flight departed Torrance, California. Visual meteorological conditions prevailed and no flight plan had been filed.
The CFI reported that during landing the right main landing gear collapsed resulting in the airplane ground looping. The airplane sustained substantial damage to the right wing and to the right horizontal stabilizer.
Witnesses reported seeing the airplane on final approach with its right main landing gear not fully extended. The airplane was recovered for further examination.
Federal Aviation Administration / Flight Standards District Office; Los Angeles, California
Aircraft landed gear up.
Date: 02-OCT-17
Time: 22:20:00Z
Regis#: 756FZ
Aircraft Make: CESSNA
Aircraft Model: C182
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: UNKNOWN
Activity: UNKNOWN
Flight Phase: LANDING (LDG)
City: HAWTHORNE
State: CALIFORNIA
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